The trapezius muscle covers a large area of the back, neck and shoulders. Its main function is to move the scapula, or shoulder blade, and help support your arms. If you spend a lot of time sitting at a desk or behind the wheel of a car, the trapezius muscle can shorten and tighten, which affects mobility in your neck.

Lower back pain can stem from your spine and the sacroiliac joint that connects the bottom of your spine with your pelvis. At its most painful, your back can feel locked in place, as if it won’t rotate easily from your right-turning position.

Slight visual disturbances during activity, including stretching, are not usually cause for concern, according to the AllAboutVision.com website. In some cases, however, seeing spots – often referred to as "seeing stars" – can mean a serious problem with your eyes.

Muscle tightness is caused by short, involuntary contractions of the muscles typically due to exercise. Vitamins work together with the other nutrients of the body to improve absorption, circulation and overall function of the muscles, organs and tissues.

Stretching elongates your muscles, increasing your flexibility. Increased flexibility gives you a wider range of motion between your joints. Gaining this added flexibility takes time.

Every morning when you wake up, instinct takes over, and you feel compelled to stretch out your body. Why do we do this? Aside from feeling good, it actually does help to wake you up. Stretching works to increase flexibility and range of motion in the muscles and joints.

The soleus muscle is located on the back of your leg just above the Achilles tendon, extending up to the main calf muscle. Because it's used to generate power for pushing off the ground with the foot, it's subject to injury, overuse and fatigue if not stretched properly.

You couldn't open or close your mouth without your masseter muscles. Imbalances or tightness of the masseter on each side of your jaw can contribute to temporo-mandibular joint, or TMJ disorder. Characterized by pain, stiffness and clicking in your jaw, TMJ can cause headaches and neck pain.

The diaphragm and longitudinal muscles of the stomach play an important role in everyday functions. The diaphragm is responsible for supplying the force behind every breath you take; your longitudinal muscles help stabilize your body when you are moving around.

Sharp pains in your abdomen can be as minor as gastrointestinal gas, or as serious as appendicitis. Movements such as stretching or twisting of your torso and abdomen may aggravate your symptoms. Treatment varies based on the cause, but may include rest, over-the-counter medications and in some cases surgery.

Hurdle stretches have been used by sports teams and physical education teachers for years to stretch the hamstring muscle. However, this stretch is falling out of favor among coaches and educators because it poses a higher injury risk than other hamstring stretches.

Diagnosing and managing medical conditions in women suffering from lower-abdominal pain can be challenging for physicians. If you are experiencing pelvic pain when you cough or stretch, seek medical attention.